| (19) |
 |
|
(11) |
EP 0 361 842 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
03.04.1991 Bulletin 1991/14 |
| (43) |
Date of publication A2: |
|
04.04.1990 Bulletin 1990/14 |
| (22) |
Date of filing: 26.09.1989 |
|
| (51) |
International Patent Classification (IPC)5: A61L 15/00 |
|
| (84) |
Designated Contracting States: |
|
BE DE ES FR GB IT NL |
| (30) |
Priority: |
26.09.1988 US 249540
|
| (71) |
Applicant: ARCO Chemical Technology, L.P. |
|
Wilmington, Delaware 19801 (US) |
|
| (72) |
Inventors: |
|
- Le-Khac, Bi
West Chester, PA 19382 (US)
- Pilcicki, Edward J.
Gilbertsville, PA 19525 (US)
|
| (74) |
Representative: Cropp, John Anthony David et al |
|
MATHYS & SQUIRE
100 Grays Inn Road
London, WC1X 8AL
London, WC1X 8AL (GB) |
|
| |
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| (54) |
Multi-layered absorbent articles and process for their production |
(57) A layered article with high fluid retention properties comprising A) at least one
layer of a non-woven web having from 5% to 100% hydrophilic fibers and from 95% to
0% other fibers; and B) at least one layer of backing material integrally attached
to the non-woven web; wherein the hydrophilic fibers are formed from (a) a copolymer
having 25 mole % to 75 mole % of an alpha, beta-unsaturated monomer bearing at least
one pendant carboxylic acid or carboxylate salt group, and 75 mole % to 25 mole %
of a copolymerizable comonomer, wherein from about 20% to 80% of the pendant groups
are carboxylic acid groups and from about 80% to 20% of the pendant groups are carboxylate
groups and (b) a cross-linking monomer selected from heterocyclic carbonate compounds
and compounds having at least two free hydroxyl groups.